Quarterly report pursuant to Section 13 or 15(d)

REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregation by Segment (Details)

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REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregation by Segment (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2024
USD ($)
reporting_segment
Mar. 31, 2023
USD ($)
Disaggregation of Revenue [Line Items]    
Number of reporting segments | reporting_segment 2  
Noninterest income from contracts with customers $ 336 $ 377
Noninterest income within the scope of other GAAP topics 131 135
Noninterest income 467 512
Payments and cash management revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 134 125
Wealth and asset management revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 88 80
Customer deposit and loan fees    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 54 47
Capital markets fees    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 29 33
Leasing revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 10 14
Insurance income    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 19 19
Other noninterest income    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 2 59
Operating Segments | Commercial Banking    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 71 73
Noninterest income within the scope of other GAAP topics 74 83
Noninterest income 145 156
Operating Segments | Commercial Banking | Payments and cash management revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 27 25
Operating Segments | Commercial Banking | Wealth and asset management revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 3 1
Operating Segments | Commercial Banking | Customer deposit and loan fees    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 4 1
Operating Segments | Commercial Banking | Capital markets fees    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 25 30
Operating Segments | Commercial Banking | Leasing revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 9 14
Operating Segments | Commercial Banking | Insurance income    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 3 2
Operating Segments | Commercial Banking | Other noninterest income    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 0 0
Operating Segments | Consumer & Regional Banking    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 265 304
Noninterest income within the scope of other GAAP topics 43 40
Noninterest income 308 344
Operating Segments | Consumer & Regional Banking | Payments and cash management revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 107 100
Operating Segments | Consumer & Regional Banking | Wealth and asset management revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 85 79
Operating Segments | Consumer & Regional Banking | Customer deposit and loan fees    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 50 46
Operating Segments | Consumer & Regional Banking | Capital markets fees    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 4 3
Operating Segments | Consumer & Regional Banking | Leasing revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 1 0
Operating Segments | Consumer & Regional Banking | Insurance income    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 16 17
Operating Segments | Consumer & Regional Banking | Other noninterest income    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 2 59
Treasury / Other    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 0 0
Noninterest income within the scope of other GAAP topics 14 12
Noninterest income 14 12
Treasury / Other | Payments and cash management revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 0 0
Treasury / Other | Wealth and asset management revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 0 0
Treasury / Other | Customer deposit and loan fees    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 0 0
Treasury / Other | Capital markets fees    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 0 0
Treasury / Other | Leasing revenue    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 0 0
Treasury / Other | Insurance income    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers 0 0
Treasury / Other | Other noninterest income    
Disaggregation of Revenue [Line Items]    
Noninterest income from contracts with customers $ 0 $ 0